cpu.asm

一个微型操作系统源码

    _get_cpuid:
      xor   EAX,EAX
      cpuid
      mov   DWORD [VendorSign],     EBX
      mov   DWORD [VendorSign+4],   EDX
      mov   DWORD [VendorSign+8], ECX
      mov   BYTE  [VendorSign+12],0x00
      
      mov   si,VendorSign
      mov   al,0x01
      int   0x021
      ret